X-ray apparatus



H. KRESS X-RAY APPARATUS July 29, 1930.

Filed Nov. 7. 1927 4 Shuts-Sheet l lNVENTOR zawa arrow/5Y5 H. KRESS July 29, 1930.

X-RAY APPARATUS Filed Nov. '7, 1927 4 Shoots-Sheet 2 Fly? IN l/E' N TOE f/ueser Kesss HTTOEA/EKS H. KRESS X-BAY APPARATUS July 29,1930.

Filed Nov, 7, 192'! 4 shuts-sheet 3 INVENTOR 1 /045527 K2555 B) 2 7 Z HTTO/E/VEVS July 29, 1930. H. KRESS 1,771,759

X-RAY APPARATUS Filed Nov. 7. 1927 4 Shoots-Sheet 4 .Fi'g: 5.

INVENTOR b uas/er Kegs Patented July29,1939 a y -7 1 9 "gr ener-3'1 KREss, or ERIJANGEN. ennuiany v V X -RAY ArrARA'r'Usff Application filed. NOveinberZQiSZ' J, serial No. 231;16'l", and iuGrmany December 8, 192$.

'lhislinvention relates to improvements in paratus which is capable of being suspended X-ray apparatus and has particular refer from aceiling or other overhead support and ence to a protective mountingfor the X-ray= in thisiembodiment a represents a housing tube. t 1 I I 1 whichissecured to the ceiling ofia room and 5 An object of theinvention is to provide, which may beTmade .ofporcelain or other an apparatus involving an improved mountsimilar material $01 as to contain the transing for an X-ray tube which will prevent former (-notshown) utilizedto supply high persons in close proximity to the apparatus potential'currcnt toltheX ra-yztubec'atthe from coming in direct contact with any parts lower. end of the apparatus A universal 1 thereof through which is passed the high joint connectionb is utilized: to join a metal potential current utilized in the operation of tube d with the transformer housing 7 and the tube. l from :saidtube is supported the remainder Another object is to support the X-ray tube of the, apparatus. This universal joint perin a manner which will permit of its being mitsof movements of the X-ray tuhein variv 1 adjusted to various positions relative to the one directions. An insulatingtube e is seobject to be treated in order to secure the cured to and surrounds the inner'tube (land most eflicient results in the operation of the has rigidly afiixed to the exterior thereof a apparatus. 3 metallic grounded casing f, the lower portion A further object is to control the emission ,ofwhich encloses the Xrraytube i The up-" v of the rays from the tube bymeans of a shutper portion of the casing f directlybelo'w the--' 70" i ter which is adjustable relative to an aperuniversal jointb supportsa protective bowltured tube-enclosing casing so that the rays shaped housings which maybeof wickermay be entirely shut oii or the direction therework or the -l1ke and which "is iutilizedfas an of controlled at the will of the operator. 7 additional protective fmeans for .the :-appar 2 The above and other objectswill appear ratus.v i i 7 7 more clearly from the following detail de- .Oneiof the electrodesof the tubes is conscription, when taken in connection with the nectedin a known manner to ground. i For accompanying drawings, which illustrate prethe purpose of cooling the anti-cathode, the ferred embodiments of the inventive idea. tube '0 may ,beprovided with a solid stem 9 In the drawings made of amaterialfwhich willabsorb the 5;

Figure 1 is a partial vertical longitudinal hea'trradiatedi by the. anti-cathode and said section of one form of the apparatus constern-eXtends-vertically upward into the tube, structed in accordance with the invention; (Z and forms one of the terminals forthe high Figure 2 is a similar view of another form potential current. i To permit of sufficient, Figure 3 is a similar view oi still another air circulation 'to at least, partially conduct form; a i the ,heat from the interior of'the apparatus,

Figure 4 is a longitudinal section through the casing f isprovided with openings at its that portion of the apparatus adjacent the lower end, as will presently appear.- Air Xq'ay tube; enters these ,openingsand passes; around'the 401 Figure 5 is a similar view taken in a plane tube 0 and thenceiinto the tube 6.- The guide at right angles to Figure 4; and r ngsw have openings 00 therein for permit Figure 6 is a sectionon the line 66 of ting the alrsto then pass'upwardly between Figur 1, V the tubesxland c and then out through open- In accordance with the present invention ingsiy in the upper. ring of the housing 145 it is proposed to enclose the high potential Instead of suspending the apparatus from circuit and the X-ray tube within a grounded the ceiling as justndeseribed, it may be atprotective sheath which willadequately protached to a wall as shown iii Figure 12, in tect the elements and prevent contact therewh1clr1nstance the housing a; enclosingthe with by persons adjacent the apparatus. I transtormer is secured to sa d wall and has 50 Figure l illustretesan adaptation oftheapprogectlng therefromthe-extensible arm g enclosing the high potential conductors and said arm terminates in one portion of a spherical or universal joint I), the other portion of which carries the tube d. The outer insulating tube 6 maybe slidable upon the tube d inorder to permit of vertical adjustments of the lower portion of the apparatus carrying the X-ray tube 0. For this pur pose the construction is the same as in Figure 1, wherein the rings on the tube d act as guides for the tube 6 when it is adjusted. The anti-cathode of the tube 0 may also be provided, as shown in Figure 2, with a surface v ard is ahorizontal arm consisting of the sections 70, the outer of which is adjustable relative to the inner section and whichcarries a bearing Z'in which the insulating tube 6 is rotatably' supported. 'From this construction it will be apparent that adjustments of the tube 0 may be maderabout the vertical always be in alignment with the opening 41 in the shutter.

By spacing the guide m from the casing f the free circulation of air through the latter,

previously referred to, is not hindered as the a1r may then pass through the aperture 1' and between thecasing and guide.

What is claimed is: r V v In an X-ray apparatus, a casing in which an Xo-ray tube is mounted, said casing having an aperture through which the rays pass, a flexible shutter movable relative to the casing to cover and uncover the aperture therein, a guide for said shutter in which the same is slidably mounted, a compression cone through which the rays also pass supported by said casingin front of the aperture there-' in, and a connection between said compression cone and shutter-for moving the same in unison. 7 i I I HUBERT KRESS.

axis -ofthe standard j and also of theltube e;

The outer extremity of the :casing f adjacent the tube "ctherein is rounded and provided with an elongated aperture 1' through which the rays from the tube cmay pass. In order to control the emission of these rays fromthe casing f the same is provided at its outer endand in spaced relation thereto with a guide m extending on both sides of thecasing and around its outer end. Slidable in this-guide is "a flexible shutter o-made of a material which is impervious tothe X-rays and which is provided therein intermediate its ends with an opening n which can "be brought into registration or alignment with the aperture 1' by a movement of the shutter in its guide so as to permit of the projection ofthe rays from the interior of the casing: and inany desired direction within the range of the ends of the aperture 7". On the other hand,-the shutter 0 may be adjusted'to a position where the opening n will not be in alignment with any portion of the opening? thus preventing any emission of the rays from'the' casing. The casing f is formed with an extension 6 upon which is rotatably supported one end of an arm u, the OthBI'JGHdOf "which carries 'a compression cone p through which the X-rays pass from the opening or in the shutter. This compression cone 1) is connected ata'll times to the shutter by a link '0 so that when the cone is 'swung'about the extension t as an axis the shutter '0 will move in u nison with s'aid cone so that the latter will 

